File:Intestinal organoid.PNG|thumb|Intestinal organoid grown from Lgr5+ stem cells.
An '''organoid''' is a miniaturized and simplified version of an Organ (anatomy)|organ
produced in vitro
in three dimensions that shows realistic micro-anatomy. They are derived from one or a few Cell (biology)|cells
from a Tissue (biology)|tissue
, embryonic stem cell
s or induced pluripotent stem cell
s, which can Self-organization|self-organize
in three-dimensional culture owing to their Stem cell|self-renewal
and Cellular differentiation|differentiation
capacities. The technique for growing organoids has rapidly improved since the early 2010s, and it was named by ''The Scientist (magazine)|The Scientist
'' as one of the biggest scientific advancements of 2013.